A: Things become difficult for Robert's father.

情形对罗伯特的爸爸不利。

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Where things have become difficult is over whether or not researchers should be allowed to send signals into space pre-emptively, in order to attract the attention of any alien listeners who might be out there.

ECONOMIST: An argument over whether to send messages to aliens

Recently, things have become more difficult.

FORBES: Magazine Article

But for a cup-tie with Celtic and the sale of Kevin MacDonald, things could have become extremely difficult.

BBC: Fans and Giovanni di Stefano vie for Dundee ownership